2129031954 has 24 divisors (see below), whose sum is σ = 5271888960. Its totient is φ = 608294808.

The previous prime is 2129031901. The next prime is 2129032019. The reversal of 2129031954 is 4591309212.

2129031954 is a `hidden beast` number, since 2 + 1 + 290 + 319 + 54 = 666.

It is a super-2 number, since 2×2129031954² = 9065554122306116232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8448414 + ... + 8448665.

It is an arithmetic number, because the mean of its divisors is an integer number (219662040).

Almost surely, 2^2129031954 is an apocalyptic number.

2129031954 is an abundant number, since it is smaller than the sum of its proper divisors (3142857006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2129031954 is a wasteful number, since it uses less digits than its factorization.

2129031954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16897094 (or 16897091 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 2129031954 is about 46141.4342429882. The cubic root of 2129031954 is about 1286.4534023148.

The spelling of 2129031954 in words is "two billion, one hundred twenty-nine million, thirty-one thousand, nine hundred fifty-four".